Clam-shell bucket.



PATENTED JULY 11, 1905:

v G. H. WILLIAMS.

OLAM SHELL BUCKET.

APPLICATION FILED MAY 19. 1904. v

3 SHEETS-SHEET 1.

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No. 794,330. PATENTED JULY 11, 19Q5.

G. H. WILLIAMS. GLAM SHELL BUCKET.

APPLIOATION FILED HAY 1'9, 1904.

3 SHEETS-SHEET 2.

No. 794,330. PATENTED JULY 11, 1905. G. H. WILLIAMS.

{ CLAM SHELL BUCKET. APPLIGATION FILED my 19, 1904.

3 SHEETS-SHEET 3.

NITED STATES Patented July 11, 1905.

PATENT OEEIcE.

CLAlVl-SHELL BUCKET.

SPECIFICATION forming part of Letters Patent No. 794,330, dated July 11, 1905.

Application filed May 19, 1904. Serial No. 208,699.

To all 1/;7'1/01'1 1/ it may concern.-

Be it known that I, GURDoN H. VVILLIAMs, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Clam-Shell Buckets, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to clam-shell buckets, its object being to provide a structure which will combine economy of construction and operation for certain special purposes.

Said invention consists of means hereinafter fully described, and particularly set forth in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings, Figure 1 represents a front elevation of a clam-shell bucket embodying my invention and in its closed position. Fig. 2 represents a similar view showing the bucket in its open position, the scoop members being, however, broken away. Fig. 3 represents an end elevation.

To the front or inner end of one of the scoop members A are secured two bearing-brackets a a, in which is journaled a rock-shaft B. Keyed to this shaft are two brackets a a, secured to the front or inner end of the other scoop member A. Keyed upon the middle of shaft 13 is an upwardly-extending arm A whose upper end is provided with a housing (f, in which is journaled a sheave a Below such sheave and upon said extension is secured a shackle a. A bracket O supports a transverse bolt 0, upon which are journaled the upper ends of two pairs of links D D, D D, whose lower ends are pivoted upon and support the rear or outer ends of said scoop members. Upon the lower part of the bracket G is mounted a sheave E, and upon a lateral extension c is journaled a second sheave E. A

shackle c is secured at the top of the bracket,

and secured thereto is the lower end of a supporting-cable F. An opening and closing cable Gr passes around sheave E, then around sheave a around sheave E. and has its extremity secured to the shackle a, as shown.

Operation: Assuming that the bucket is closed and it is desired to open same, cable G is slacked away, which permits of the depression of the central part of the structure by gravity, such action being of course facilitated and hastened in case the scoop members contain a load. Such movement will be attended by the recession of arm or extension A. Upon reaching the open position the winding up of cable Gr will effect the closure of the bucket, as will be readily understood.

The above-described bucket is particularlyadapted for use in picking up light materials, such as coal, sand, lime, &c.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any one of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In a clam-shell bucket, the combination of two scoop members having their inner ends hinged together, a bracket, means secured to said bracket supporting the outer ends of same members, a sheave mounted upon one of said scoop members, sheaves mounted upon said bracket, and a closing-cable secured at one of its ends to one of said scoop members and passing around said sheaves.

2. In a clam-shell bucket, the combination of two scoop members hinged at their front or inner ends, one of such members provided with an extension, a sheave mounted on such extension, a bracket; means mounted upon said bracket and supporting the rear or outer ends of said members; a sheave mounted upon said bracket; and a closing-cable secured at one of its ends to said extension and passing around said sheaves.

3. In a clam-shell bucket, the combination of two clam-shell scoop members hinged at their front or inner ends, one of said members provided with an extension rigidly connected therewith; a sheave mounted upon such extension; a bracket; links having their upper ends pivoted upon said bracket and their lower ends pivoted to the rear or outer ends of said members; two sheaves mounted upon such bracket; a closing-cable secured at one of its ends to said extension and passing around said sheaves; and a supporting-cable having one end attached to said bracket.

4. Ina clam-shell bucket, the combination of two scoop members each provided at their inner ends with brackets, a common shaft journaled in the brackets of one member, and keyed to the brackets of the other member; an extension keyed to such shaft and provided with a sheave mounted thereon; a separate bracket and means mounted thereon adapted to support the rear or outer ends of said members; sheaves mounted upon said latter bracket; and a closing-cable secured to said extension and passing around said sheaves.

5. In a clam-shell bucket, the combination of two scoop'members each provided at their inner ends with brackets; a common shaft journaled in the brackets of one member, and keyed to the brackets of the other member; an extension keyed to such shaft intermediate of the brackets of said members respectively, and provided with a sheave mounted thereon; a separate bracket; links having their upper ends pivoted upon said latter bracket and their lower ends pivoted to the rear or outer ends of said members; two sheaves mounted upon said latter bracket; and a closing-cable passing over one of the sheaves of said bracket, around the sheave of said extension, over the other sheave of said bracket, and thence secured to said extension.

Signed by me this 18th day of May, 1904.

GURDON H. WILLIAMS.

Attest:

G. W. SAYWELL, A. E. MERKEL. 

